The following are Library of Congress subject headings that can be used to search the Library Catalog.
- World War, 1914-1918--[Country]
- World War, 1914-1918--Social aspects--[country or region]
- World War, 1914-1918--Personal narratives, [British, Turkish, Irish, etc.]
- World War, 1914-1918--Campaigns--[Country]
- World War, 1914-1918--Diplomatic history--Sources
- World War, 1914-1918--Diplomatic history--Sources
- Civilians in war--[country or region]--History--20th century
- [Country or region]--History, military--20th century
- [Country or region]--History--[time period]
- [Country]--Military policy
- [Country]--Military policy--History--20th century
- [Country]--Foreign relations--[time period]
- [Country]--Politics and government--[time period]
- Ireland--History--Partition, 1921
Try an advanced search in the catalog. Use World War, 1914-1918 as a subject heading and combine it with keywords relevant to your topic (ex, Great Britain, France, Ireland, etc.)